[sdiy] when to use LIN POTS and when to use LOG?

[dan snazelle]

i know that LOG are for volume.

But beyond that, if i am controlling GAIN (or volume) in the feedback path of an opamp, is that a log?

and what about a voltage divider that is feeding less or more CV into an expo? Would that be LOG? (since it is an AMOUNT?)

what about a voltage divider feeding more or less signal into a section of a circuit?

and what about TIME? like in a LAG? 

would i use a LOG pot for an attack?

I was under the impression for example that often times, instead of using a smaller value LINEAR POT, the answer might be to use a LOG POT.

i was messing around with a lag where i Had a 100k pot. it seemed like it only LAGGED at the first 10 percent of the pot. but my friend said, thats because you need a LOG.


i think this has remained a mystery to me because whenever i have bought pots, i just buy lots of cheap ones. and LIN are make more commonly on sale and more widely used.

thanks!!!!